Frederick d a



(No Model.)

P. DA. GOOLD. POLE STANDARD FOR ARC LAMPS.

No. 492,008. Patented Feb. 21, 1893.

FAT/kw m: Nonw s PEYERS cu, FHOTO-LIYHQ, WASHINGTON, 04 c.

llsnrn STATES FREDERICK DA. GOOLD, OF SCHENEGTADY, ASSIGNOR TO THEEDISON GENERAL ELECTRIC COMPANY, OF NEWV YORK, N. Y.

POLE-STANDARD FOR ARC LAMPS.

SPECIFICATION forming part. of Letters Patent No. 192,008, datedFebruary 21 1893.

' Application filed April 15, 1892. Serial No. 429,276- (No model.)

To aZZ whom it may concern:

Be itknown that I, FREDERICK DA. GooLD, a citizen of the United States,residing at Schenectady, county of Schenectady, and State of New York,have invented a certain new and useful Improvement in Pole-Standards'forArc ltl amps, of which the following is a specificaion.

The present invention relates to standards adapted to be mounted on thetop of poles or other suitable supports for sustaining arc lamps.

The main object of the invention is to produce a simple and cheap devicefor the purpose mentioned, which shall securely hold the lamp, and whichshall be less cumbersome and unsightly than many of the standardsheretofore employed. By the presentconstruction I do away with the largehood and hanger-boards heretofore employed, and am enabled to use astandard of much less length, at the same time being able to use longlamps.

In the accompanying drawings, which illustrates the invention, Figure 1is a side view of the improved standard, with a lamp in place; Fig. 1 isa section through one of the trun nions. Fig. 2 is a plan view of thestandard, with the lamp removed; Fig. 3 is a view of a switch applied tothe standard with the inclosing box removed; and Fig. 4 is a section online 00-00 of Fig. 3, showing the arrangement of the switch contactplates and springs.

The improved standard comprises a base 1, having, preferably, a centralopening 2, adapted to fit onto the pole 3. Near each end of the baserises a rod or side-bar 4., 5, these being preferably screwed into thebase and secured by suitable fastening-nuts 6. At the top of the rods issecured a bent cross-piece 7, which has trunnion bearings 8, 9 formed inthe upper side thereof, preferably on a line passing through the centerof the opening 2.

10 are vertical lugs on either side of the hearing, through which ascrew 11 may be passed above the trunnions when the latter are in place,to prevent accidental displacement of the lamp by a workman makingrepairs, or by other persons. On the base, outside of the side-rods, areinsulators 12, to which the line wires are led, as indicated, and on therod 5 are fixed insulators 13, by means of which the wires leading tothe lamp are held and guided or the Wires may be led through theside-rods if they are of tubing.

is is a sheet metal or otherbox, covering the mechanism of a switch. Theswitch is insulated from the frame by a thick sheet of rubber 15 and aslate or other base 16. Sheet 15 also acts as a cushion to prevent theslate base breaking when screwed up. The switch comprises a centrallypivoted handle 17, on which are metal contact devices 18, 19, consistingof metal strips, bent around and secured to the handle. The switch alsohas two contact plates 20, 21, directly on the face of the base 16, andfour contacts 22, 23, 24, 25, (the latter being connected to 22,) thecontact ends of which are raised above the base and extend over theplates 20, 21, as most clearly shown in Fig. 4. The incoming line 26 isconnected to plate 20, and the outgoing line is connected to 21. Thepositive terminal of the lamp L is connected to 24, and the negativeterminal of the lamp to 23, so that when the switch is in the positionshown, the circuit of the lampis closed. When, however, the switchhandle is thrown to the opposite side, the circuit is closed directlythrough the switch cutting the lamp entirely out of connection with theline.

The lamp is shown in Fig. 1 in position on the standard. Instead ofsupporting the lamp by hooks projecting drownward from a plate orcrossbar and engaging books or eyes on the end of the lamp, I providesupporting means, for example trunnions or pivot-pins 27, preferablytubular, projecting from the sides of the lamp at a considerabledistance below its top, through which trunnions the wires from theinterior of the lamp pass, in an insulated tube 27 being connected tothe circuit wires outside of the lamp. The trunnions rest in thebearings already described. Through the lower side of the tubulartrunnions are holes to allow escape of water if an should follow alongthe wires.

It is'evident that the arrangement described is exceedingly simple; thatit makes it possible to use comparatively short standards; and

that the construction is strong and safe. By making the inclosing box ofthe lamp practically water-tight, use of the large and unsightly hoodsheretofore employed is unnecessary. The switch is mounted in a neat,small box, and is supported in such manner that it does not disfigurethe structure.

Evidently the arrangement of the upper cross-piece and the form of thetrunnion bearings can be varied, and in some cases, especially when theside-rods are strong, it may be unnecessary to employ the uppercrosspiece.

lVhat I claim is 1. A standard for are lamps, havinga base adapted to besecured to a support such as a pole, side rods, a cross-piece at theupper ends of said rods and bent or deflected to allow the lamp to standbetween the side rods but at the same time to extend above them, andmeans also at the upper ends of the side rods adapted to engage or holdsupporting devices projecting, from an arc lamp, substantially asdescribed.

2. A standard for are lamps, comprising a base adapted to be secured toa support, such FREDK. DA. GOOLD. Witnesses:

CHARLES M. OA'rLIN, A. W. ANDREWS.

